Machine for making flexible boxes.



B. G. STAUDE.

MACHINE FOR MAKING FLEXIBLE BOXES.

APPLICATION FILED H28. 13, 1903.

Patented Feb. 8, 1910.

2 SHEETS-SHEET 1.

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MACHINE FOR MAKING FLEXIBLE BOXES.

urucumx nun mm 13, 1903 Patented Feb. 8, 1910. I 2 SHEETS8HEET 2.

6 10 iiarneya UNITED. STATES PATENT OFFICE.

EDWIN G. STAUDE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO E. G. STAUDEMANUFACTURING COMPANY, A CORPORATION OF MINNESOTA.

MACHINE FOR MAKING FLEXIBLE BOXES.

Specification of Letters Patent.

Patented Feb. 8, 1910.

Application filed February 13, 1903. Serial No. 143,179.REIS

To all whom it may concern:

.Be it known that I, EDWIN G. STAUDE, of Minneapolis, county ofHennepin, State of Minnesota, have invented certain new and usefulImprovements in Machines for Making Flexible Boxes, of which thefollowing is a specification.

My invention relates to machines for making flexible boxes andparticularly those designed for containing cereal foods.

The object of the invention is to improve the apparatus shown anddescribed in certain Letters Patent of the United States issued to me onthe 9th day of December, 1902, No. 715620.

The invention consists generally in providing means for separating thewaste pieces that are cut out by the action of the knives from thefinished blanks.

Further, the invention consists in improved means for holdin the blanksfirmly upon a traveling belt uring the pasting and folding operation,and

Further, the invention consists in means for placing suitable printedmatter upon the blanks, and

Further, the invention consists in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims. In the accompanying drawings forming p'art of thisspecification: Figure 1 is a plan view of a box-making machine embodyingmy invention. Fig. 2 is a longitudinal section. Fig. 3 is a plan view ofa portion of the discharge end of the machine, showing the mechanism foroperatin the printing rolls and the devices for hol ing the blanks uponthe belt at that point. Fig. 4 is a perspective showin the cutting rollsand the means employed for detaching the waste portion from the blanks.

In the drawings, 2 represents a suitable frame whereon a table 3 isarranged. Near the receiving end of said table, said frame is providedwith standards 4, between which the cuttin and scoring rolls 5 aremounted. These rol s are provided on their peripheries with scoring orcutting knives 6 and groups of severing and transverse cutting orslitting kni es 7 and 8, that fit snugly within sockets in saidperipheries, the severing knives extending lengthwise of the rolls, andthe slitting knives substantially at right arm gles with the severingknives and conforming to the rounded surfaces of the rolls. These knivesare substantially the same as those shown anddescrihed in myapplication, No. 134903, filed December 12th, 1902, which has eventuatedin F'atent No. 837,853 dated Dec. 4:, 1906, and hence need no detailedillustration or description herein.

The cutting rolls in this machine are designed particularly for turningout blanks 9 having tongues 9 at the ends of the cartons that areadapted to enter slits 9" in the opposite flap and interlock to preventaccidental opening, and said rolls are therefore provided withirregularly shaped cutting knives 10 for forming the said tongues, andstraight knives 10' for cutting the slits 9". The shaft of the lowerroll is provided with a driven pulley 10", and both of said shafts havegears 11 that mesh with each other and are of the same size, to causethe rolls to be driven at the same peripheral vs eed. In front of thecutting rolls I provide a roll 12, mounted in hearings, in the frame ofthe machine and provided on its periphery with longitudinally arrangedribs 13 and with a transverse rib 14 and a raised irregular portion orprojection 15 that corres onds m its outline to the shape of the knives10. The roll 12 is driven from the shaft of the upper roll 5 by means ofa sprocket chain 16, and has the same periph-- eral speed as saidcutting rolls. I prefer to provide the roll 12 with two sets of the ribs13 and 14 and the raised portion 15, and these parts are arranged toengage and press or push the waste pieces of the blanks out from betweentheir abutting ends, as the blanks pass between the roll 12 and thetable. Beneath the roll 12, I prefer to provide a slot 17 in the tablethrough which the said waste pieces are discharged. In this machine theroll 12 will pass over two blanks with each revolution, but it may bearranged, of course, in the manufacture of longer cartons, to pass overbut one blank, and in that event it would be provided with but one setof the ribs and the raised portion. At each end of the table 3, Iprovide rolls 18 and 18', over which a belt 19 is adapted to travel, its

upper half resting upon the surface of thetable. The roll 18 is drivenfrom the shaft of the roll 12 by a gear 20. A gear '21 is sccured on theshaft of the roll 18 and meshes with a similar gear 22 on a shaft 23that is mounted in hearings on the table near its revolving end. Allthese parts operate at the same speed, so that the blanks will passthrough the machine at a uniform speed, and the maximum capacity of themachine can be maintained. 7

A frame 24 is mounted on the shaft 23 and carries a series of idlewheels 25 that are arranged to bear upon the surface of the blanks, andupon each side of said frame on said shaft, I arrange wheels 26 securedthereon and adapted to bear upon the blanks near the edge of thetraveling belt, to pre= vent any possibility of the blanks curling up asthey leave the rolls. I also prefer to provide idle wheels 27 in advanceand in line with the wheels 2". The idle wheels on each side of theframe are driven by means of belts 28, which connect them with thewheels '26. The forward end of the frame is provided with a pivoted arm29- mounted on a shaft 30, on. the. ends of which the idle wheels :25,at that oint, are supported, and said shaftis provi ed with a wheel 31over which a belt 32 asses to a Series of idle wheels 33, mounted on thearm 29 and gradually decreasing in size toward its free end. The forwardend of the arm 29 is provided with several idle wheels 3%. The weight of35 the frame and arm and the wheels carried thereby, will hold theblanks down upon the belt with a yielding pressure and prevent theirslipping while the edges are being folded. I prefer to taper the arm 29and provide idle wheels thereon that gradually decrease in diametertoward the free end of the arm, so that, as the edges of the blanks arefolded over the middle portions thereof, and during such foldingoperation are carried along by the belt, the wheels bearing on themiddle portions of the blanks.

will extend beneath the folded portions and not interfere with theaction of the folder arms 35. As in my patent above referred to, Iprefer to extend the pivoted arm to a pointoppositeto the termination ofthe inwardly turned portion of the folders. so that. during the foldingoperation, the blanks will be vieldingl v held on the traveling belt.and the weight of the arm and the wheels carried thereby, will besntiicicnt to prevent any danger-of slippin s ,f

llpon the tablcf near the dtsclmrg'e end of the machine, I provide ashaft 36. whcreon wheels 37 and 38 are secured. the former beon theshaft 41 of the adjacent roll l3. T he wheels 38 engage the box blankafter it leaves the folders 35 and serve to complete mg connected bv abelt 39 with a pulley' -lfl the folding operation. A frame 42 ismouutedon the shaft 36 and is provided with a series of idle wheels l l.connected b lit-its l-l with the wheels 38. and said belt also pass oversmaller idle wheels 45, provided at the forward end of said frame andbelow the level of the wheels 43. Rolls 46 and 4?, having printing typeon their peripheries, are supported in bearings at the discharge end ofthe machine in a suitable frat-1e 4S. and are arranged to receive theends of the blanks as the) are discharged from between the travelingbelt and the idle wheels The roll 46 is driven by a chain 49 from theshaft 41, and a gear 50 is provided or. the shaft of the roll 46 meshingwith a similar gear on the adjacent printing roll, and above he printingroll '47 are ink rolls 51 and 52, the latter being in engagement withthe surface of the roll 47 and driven therebv. is an ink reservoirprovided near the roll 52. A similar inking mechanism is provided nearthe roll 46. Beneath the discharge end of the machine is a transverseshaft 5% driven by a belt 55 from the shaft of the roll 18',

.and beveled gears 56 are provided on the said shaft 5- meshing withsimilar gears 57 on the shaft 58, whereon spirals 59 are arranged. Thesespirals are above a trough (l0, and the blanks discharged from betweenthe printing rolls pass between the spirals and are advanced therebyinto the trough,

and packed, one against another, in an up-.

right position. Any suitable matter may be provided on the printingrolls, according to the size and shape of the carton, it beingessential, however, to regulate the speed of the same according to thatof the belt and the other mechanism of the machine, so that the printingon the blanks will be uniform and regular.

The following is a brief description of the operation of my machine: Themachine having been set in motion. the roll of paper is fed to thecutting and scoring rolls in the usual manner, and as the paper passesl)8- tween the rolls, the cotiperation of the knives thereon. will slitand sever the blanks. as shown in Fig. 4. The knives will cut the stockto form the tongues in the ends of the flaps and also the slits, toreceive said tongues when the ends of the.cartons are closed. The wastestrip between the blanks will be engaged and pressed through the slot 17by the action of the roll 12. and the blanks passing from between saidroll and the table, will be engaged by the wheels '26 and the endlessbelt and carried along toward the folilersz' After being thus folded.the blanks will be engaged by the wheels 33 to complete the folding o)eration and after passing through the printing rolls, will be deliveredto the spiral-conveyers and packed in the trough (lgi' The machine isextremely simple of constrnction. quick in operation, and will turn outblanks that are uniform and regular, even when driven at a high rate ofspeed.

I claim as my invention:

1. In a machine having cutting and scoring rolls, the combination, witha suitable frame, of a table, a shaft near said rolls above said table,and means for driving the same, wheels secured on said shaft, a framehinged on said shaft, a series of idle wheels carried by said frame, andbelts passing over said shaft wheels and said idle wheels, substantiallyas described.

2. In a machine having cutting and scoring rolls, the combination of atable, a revolving shaft mounted thereon, wheels secured on said shaftbetween which and said table the blanks pass from said rolls, a framehinged on said shaft between said wheels,

-idle wheels carried by said frame, belts connecting said idle wheelsand said shaft wheels, an arm pivoted on said frame, and a series ofidle wheels carried by said arm.

3. In a machine having cutting and scoring rolls, the combination of atable, an endless belt operating over the same, revolvin shaft wheelssecured thereon, a frame hinged on said shaft, idle wheels carried bysaid frame and adapted to bear upon said belt, and belts connecting saididle wheels and said shaft wheels.

4. In a machine having cutting and scoring rolls, the combination of atable, an endless belt operating over the same, revolving shaft wheels26 secured. thereon, a frame hinged on said shaft between said wheels,idle wheels mounted in said frame, belts connecting said idle wheels andsaid wheels 26, and idle wheels 27 mounted on said shaft and said frameand adapted to bear upon said belt near the edges thereof, substantiallyas described.

5. In a machine having cutting and scoring rolls, the combination of atable, an endless belt operating over the same, a revolving shaft, aframe hinged thereon, idle wheels carried by said frame and adapted tobear upon said belt, an arm hinged on said frame, idle wheels carried bysaid arm, and folder arms provided on said table upon each side of saidframe.

. 6. In a machine having cutting and scormg rolls, the combination of atable, a belt operating over the same, a frame hinged a ove said table,idle wheels carried by said frame and adapted to bear upon said belt, anarm pivoted upon said frame, idle wheels carried by said frame and arraned to bear upon said belt near the middle t ereof, and

said wheels gradually decreasing in size toward the discharge end ofsaid table.

7. In a box-making machine having a table and an endless belt operatingover the same, a frame hinged above said belt near the discharge end ofsaidtable, and having its free end toward the discharge end of thetable, a series of id le wheels carried by said frame, and beltsconnecting said wheels.

8. The combination, with a table, of an endless belt operating over thesame, a revolving shaftprovidod near the discharge end of said table,wheels secured on said shaft, a frame hinged on said shaft, idle wheelscarried by said frame, and belts connecting said idle wheels and saidshaft wheels, substantially as described.

9. In a box making machine having a table, an endless belt operatingover the table, means for folding a box blank and printing rolls locatedat the discharge end of said table and below the top thereof; grippingmeans located above said table and printing rolls at the discharge endthereof and having an overhanging part beyond the end of the table todirect a blank from the belt downwardly to the printing rolls,substantially as described.

10. In a box making machine having a table, an endless belt operatingover the table, means for folding a box blank and printing rolls locatedat the discharge end of the table and below the top thereof; a frameabove the discharge end of the table, and above the printing rolls andaseries of idle wheels mounted in said frame and cooperating with thebelt to deliver blanks from the table to the printing rolls.

11. The combination with means for folding a box blank, of means forprinting on the folded blank, means for ho ding down the folded portionsof the box blank while the latter is passing to the printing means, andmeans for delivering the blanks from said printing means to areceptacle.

12. In a box-making machine having a feed belt, and means for folding abox blank thereon; rinting rolls located at the end of said feed belt,and means located above said belt for gripping the blanks and deliveringthem to said printing rolls, substantially as described.

13. The combination, with a suitable frame, of a belt mounted therein, atable over which said belt operates, folding devices arranged to engageblanks on said belt, means for pressing the edges of the blank together,and printin rolls to receive the blanks from said belt and said pressingmeans.

14. In a box making machine, an endless carrier for conveying blankswhile being folded, means above said carrier for partially folding ablank, and positively driven folding wheels situated above said carrierand at the discharge end of said f lding means for engagin said blank tocomplete its fold, substantially as described.

15. In a pa er-box making machine, the arranged to be brought intoregister there- 10 combination with scoring and severing rolls, with andwith the opening in the table, snbof a table to receive the blank fromsaid 1 stantially as described. rolls, said table having an openingtherein In Witness .vhereof, I have hereunto set adjacent to said rolls,for the discharge of E niyhand, this 3d day of February, 1903. thesevered portion of the blank, and a roll EIHVIN G. STAUDE. above thetable, said r011 provided with g1 In presence of-- raised portioncorresponding to the out por- RICHARD PAUL, tion of the blank which isto be removed and E S. V. GRIFFIN.

